Spring-leaf-tapering machine.



F. B. SCHUYLER;

SP RING LEAF TAPERING MACHINE.

APPLICATION FILED 02c. 22. 1915.

1,230I523. Patented June 19, 1917.

FRANK B. SCHUYLER, or BERKELEY, CALIFORNIA.

SPRING-LEAF-TAPERING MACHINE.

Specification of Letters Patent.

Patented June 19, 1917.

Application filed December 22, 1915. Serial No. 68,167.

To all whom it may concern:

Be it known that I, FRANK B. SOI-IUYLER, a citizen of the United States, residing at Berkeley, in the county of Alameda and State of California, have invented new and useful Improvement in Spring-Leaf-Tapering Machines, of which the following is a specification.

This invention relates to a spring leaf tapering machine.

One of the objects of the present invention is to provide a simple, substantial, cheaply operated and manufactured machine, particularly adapted for repair shop use, whereby individual leaves in elliptical or semi-elliptical springs may be tapered by roller action. Another object of the invention is to provide a machine of the character described, which is capable of tapering leaves of varying widths and thicknesses without changing the rollers, or the size of the machine. Further objects will herein after appear.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Figure 1 is a side elevation of the machine.

Fig. 2 is a front view of same.

Fig. 3 is a rear view.

Fig. 1 is a side elevation of the anvil block.

Referring in detail to the drawings, A indicates a frame, in this instance constructed of a pair of channel beams secured, by angle brackets 2, to a base-plate 3. Secured on the rear side of the channel beams is an upper and lower set of bearing members 4 and 5, and secured on the front face of the channel beams is a set of bearing brackets 6. J ournaled in the upper end of the brackets 6 is a shaft 7, upon which is secured a cam-shaped roller 8, which will hereinafter be known as a fuller; and mounted on a shaft 9, journaled in the lower end 019' bracket bearing 6, is an anvil block 10. This block is segmental shape and its face arcuate, as at 11.

For the purpose of permitting the anvil to be adjusted vertically, with relation to the fuller, a square-shaped opening 12 is formed in the lower end of the bracket. This opening is provided to permit the insertion of journal boxes 13, the position of which may be adjusted by set-screws 14:.

The opening 12 is larger than the journal boxes, thus permitting the anvil to be raised and lowered vertically by means of the setscrews 14.

Secured at one end to the anvil and at the other end to the frame is a coil spring 15 which normally holds the anvil against a stop 16,-or in the full line position shown in Fig. 1. The fuller or cam-shaped roller 8 is rotated by means of gears 17, 18, 19 and 20. The gear 20 is secured upon a driving shaft 21 journaled in the bearings 5; gears 18 and 19 are mounted on a shaft 22 journaled in the bearings 1; and gears 17 are secured directly to shaft 7 The driving shaft 21 is, furthermore,provided with a pair of fly-wheels 23 and a driving pulley 24. which may be driven from any suitable source of power (not here shown).

In operation, with power applied through the pulley 24 and the gear train, consisting of the gears 20, 19, 18 and 17, it will be seen that a'comparatively slow revolving movement will be'transmitted to the cam faced roller or fuller 8. A leaf blank inserted between the fuller and anvil will, therefore, be gradually engaged by the increase in diameter of the fuller and move in the direction of' arrow or until a complete taper has been drawn or produced, when it will assume the position indicated at 25; the anvil block having at the same time moved into the dotted line position shown at 26. Further movement of the fuller releases the leaf blank, permitting same to be removed. The anvil block will then be automatically returned to its normal position where it engages with the stop 16; this being accomplished by the tension of spring 15. Mounted between the bearing brackets 6 is an adjustable stop or gage 27, against which the blanks are brought to bear when inserted between the fuller and anvil. This insures an equal taper on all blanks inserted and also permits this taper to be more or less increased or decreased in length as oocasion may demand. The adjustable mounting of the anvil, together with the broad faces provided both on the anvil and fuller, permits leaf blanks of difierent widths and thicknesses to be rolled or tapered by the machine without changing the fuller and anvil, or the side of the machine.

The gradual increasing diameter of the fuller is preferably drawn or shaped on a spiral line and the distance from the pivotal mounting to the arcnate face of the anvil is preferably several times the diameter of the fuller. The large diameter of the anvil, together with the pivotal mounting of same with relation to the fuller, is of great importance as it permits a drawing action which prevents any appreciable spreading or flattening of the blank while the taper is being drawn. This drawing action is effected bv the positive driving of the fuller free and independent of the anvil, together with the pull in the opposite direction of the spring 15. The anvil having no positive drive. whatever with the fuller, except through an interposed spring leaf only. the positively driven fuller draws the metal on top against the reverse pull of the spring and anvil.

The materials and finish of the several parts of the machine may be such as the udgincnt and experience of the manufacturer ma dictate.

I wish it ninlerstood that various changes in. form, proportimis and, minor details of construction may he resorted to within the scope of the appended claims and that I do not wish to limit myself to the specific de sign and construction here shown.

ltlaving thus described my ii'ivention, what I claim and desire to secure by Letters Patent is 1. In a spring leaf tapering machine, a frame, a rotatable anvil thereon having an uninterrupted concentric face, a cam face fuller rotatable on the frame freely of the anvil and entirely out of the path of the latter, and means tending to hold the anvil from movement whereby the fuller will exert a drawing action upon the interposed Work.

2. In a spring leaf tapering machine, a frame, a spring held anvil block pivotally mounted in the frame, a, fuller journaled adjacent to the anvil. and having a cam face adapted to rotate independent of the anvil in a path out of contact therewith, means for rotating the fuller, and means for raising or lowering the anvil with relation to the fuller.

in a spring leaf tapering machine, a frame, an anvil block having a concentric uniin'errnpted areuate face formed thereon pivotallv mounted in the frame for free movement, a stop member with which the anvil normally engages, a spring connected at one end to the anvil and at the other end to the frame for exerting a constant and unrestrained pull on the anvil, a roller fuller journaled adjacent to ti 2 anvil and having a fixed cam far-e. extending completely about the fuller. said cam face being of spiral contour 2 nd rotatable in a path entirely out of the path of movement of the anvil, and means for positively operating the fuller.

In testimony whereof I have hereunto set my hand in. the presence of two subscribing witnesses.

FRANK B. SCHUYLER.

lVi tnesses JonN H. HERRING, lV. XV. HEALEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. (3., 

